Update to NSPR 4.9.5 Beta 2, part 2: actual changes.

mozilla/nsprpub/pr/src/md/unix/uxproces.c

 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "primpl.h"
 
 #include <sys/types.h>
 #include <unistd.h>
 #include <fcntl.h>
@@ skipping 693 matching lines @@
 }
 
 #endif  /* !defined(_PR_NATIVE_THREADS) */
 
 static PRStatus _MD_InitProcesses(void)
 {
 #if !defined(_PR_NATIVE_THREADS)
     int rv;
     int flags;
 #endif
-#ifdef SUNOS4
-#define _PR_NBIO_FLAG FNDELAY
-#else
-#define _PR_NBIO_FLAG O_NONBLOCK
-#endif
 
 #ifdef AIX
     {
         void *handle = dlopen(NULL, RTLD_NOW | RTLD_GLOBAL);
         pr_wp.forkptr = (pid_t (*)(void)) dlsym(handle, "f_fork");
         if (!pr_wp.forkptr) {
             pr_wp.forkptr = fork;
         }
         dlclose(handle);
     }
 #endif /* AIX */
 
     pr_wp.ml = PR_NewLock();
     PR_ASSERT(NULL != pr_wp.ml);
 
 #if defined(_PR_NATIVE_THREADS)
     pr_wp.numProcs = 0;
     pr_wp.cv = PR_NewCondVar(pr_wp.ml);
     PR_ASSERT(NULL != pr_wp.cv);
 #else
     rv = pipe(pr_wp.pipefd);
     PR_ASSERT(0 == rv);
     flags = fcntl(pr_wp.pipefd[0], F_GETFL, 0);
-    fcntl(pr_wp.pipefd[0], F_SETFL, flags | _PR_NBIO_FLAG);
+    fcntl(pr_wp.pipefd[0], F_SETFL, flags | O_NONBLOCK);
     flags = fcntl(pr_wp.pipefd[1], F_GETFL, 0);
-    fcntl(pr_wp.pipefd[1], F_SETFL, flags | _PR_NBIO_FLAG);
+    fcntl(pr_wp.pipefd[1], F_SETFL, flags | O_NONBLOCK);
 
 #ifndef _PR_SHARE_CLONES
     pr_InstallSigchldHandler();
 #endif
 #endif  /* !_PR_NATIVE_THREADS */
 
     pr_wp.thread = PR_CreateThread(PR_SYSTEM_THREAD,
             WaitPidDaemonThread, NULL, PR_PRIORITY_NORMAL,
 #ifdef _PR_SHARE_CLONES
             PR_GLOBAL_THREAD,
@@ skipping 126 matching lines @@
             prerror = PR_INVALID_ARGUMENT_ERROR;
             break;
         default:
             prerror = PR_UNKNOWN_ERROR;
             break;
     }
     PR_SetError(prerror, oserror);
     return PR_FAILURE;
 #endif
 }  /* _MD_KillUnixProcess */